Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 330

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-330 A Salisbury MD SLBRMDSB8MD  2589 US LEC OF MARYLAND, INC. 242      
667-330 0 Salisbury MD   145J TERRA NOVA TELECOM INC. 242      
667-330 1 Salisbury MD SLBRMDSB8MD  2589 US LEC OF MARYLAND, INC. 242      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.